In the Netherlands, King's Day is commemorated with vibrant street festivals, where the entire nation engages in festivities celebrating the king's birthday. People typically wear orange, the national color, and participate in various activities, such as street markets, live music, and outdoor games. A notable tradition is the vrijmarkt, or free market, where citizens sell their second-hand items without requiring a permit. This unifying celebration fosters a strong sense of national pride and community spirit across the country.